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Figure B-30 presents the conductivity versus time data for well GP9. A fair amount of • <br />scatter is seen for this well, but overall the values have been steady the last few years. <br />Wells P1 and P3 are alluvial and Lewis Shale completion wells, respectively. The Lewis <br />Shale is thought to contribute some water to the alluvium in this area and, therefore, may influence <br />conductivity values in water from well Pl. Figure B-31 shows significant variations in conductivity <br />values for well P1, as would be expected for an alluvial system. Precipitation has also influenced <br />rechazge to the Lewis Shale. Conductivity values for 1994 for both of these wells showed additional <br />scatter and overall had values similar to those seen in recent years.. <br />Wells PS and P8 have shown variations in values as expected from shallow aquifers. <br />Figures B-33 and B-34 each show that conductivity has remained fairly steady since 1986. <br />Conductivity in the COY alluvial well (Figure B-35) gradually increased from 1985 to <br />1990. Conductivity values hit a high of 2650 ~mthos/cm in 1990 and have been fairly steady • <br />through 1994. The conductivity of water in well JI (Figure B-36) was steady to 1985, followed by <br />arising and declining trend. Afrer a steady period in 1990, conductivity values rose in 1991 and <br />became fairly steady through 1994. <br />Water collected from the 3rd White Sandstone rvel] 81-03a }Melded the conductivities <br />plotted on Figure B-37. Conductivities in well 81-03a steadily increased from 1987 to 1989. A <br />declining trend has been observed since 1989. Values of conductivity collected to date for well <br />GLiJX-1 are presented on Figure B-38 and considering the 3rd quarter 1993 and 1994 laboratory <br />values rather than field values, have been fairly stable. Conductivity data for well GMP-1 have been <br />collected for the past three years and are presented in Figure B-39. The first value in late 1990 was <br />high, but the values observed for 1991 through 1994 are considerably lower and have remained <br />fairly stable. <br />• <br />3-6 <br />